Port event listeners from commands.Bot -> nextcord.Client

[EmreTech]

Summary

Port event listeners from commands.Bot to nextcord.Client.

What is the feature request for?

The core library

The Problem

Currently with nextcord.Client, you can only have one callback per event. You can override event callbacks with your own behavior, but you can't have multiple listeners that don't affect the default event callback.

The Ideal Solution

Port event listeners from commands.Bot but keep the event override functionality since that will break many bots that rely on this. This can be performed with a simple dictionary that maps event names -> lists of coroutines that are event listeners. Then, when a certain event is dispatched, we loop through all of the event listeners mapped to that event and run them all.

The Current Solution

This functionality has already been implemented in ext.commands, so you can use that.

Additional Context

No response